using (var api = OcrApi.Create())
            {
                api.Init(Languages.English);
                using (var renderer = OcrPdfRenderer.Create(@"D:\1\3\file", @"tessdata"))
                {
                    renderer.BeginDocument("Title");
                    var image = Image.FromFile(@"D:\1\3\PropostadeseguroFormigoni.tiff");
                    var pages = image.GetFrameCount(FrameDimension.Page);

                    for (int index = 0; index < pages; index++)
                    {
                        image.SelectActiveFrame(FrameDimension.Page, index);
                        using (var bmp = new Bitmap(image.Width, image.Height))
                        {
                            using (var g = Graphics.FromImage(bmp))
                            {
                                g.DrawImage(image, 0, 0, image.Width, image.Height);
                            }

                            var pix = OcrPix.FromBitmap(bmp);
                            api.ProcessPage(pix, null, 0, renderer);
                        }
                    }
                    renderer.EndDocument();
                }
            }